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tiny-mole [99]
3 years ago
12

Can you help me on this

Mathematics
1 answer:
grigory [225]3 years ago
7 0

Answer:

The answers are x < -65, x > 85, x < 180, x<= -13, and x >=25.

Step-by-step explanation:

For the first three, there's an open circle so the sign for the inequality would be < or > but for the last two, there's a closed circle so the sign for the inequality would be <= or >=, the ones with a line underneath. For 1, 3, and 4, the line goes to the left, showing that x is a number less than the point so it would have <, the less than sign. For 2 and 5, the line goes to the right, showing that x is a number greater than the point so it would have >, the greater than sign.

There's a trick to figuring out the right sign. If the line is pointing to the left, the inequality would be x < __, and the sign is pointng to the left. If the line is pointing to the right, the inequality would be x > __, and the sign is pointng to the right. This only works is x is on the left side of the inequality.

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A culture started with 2000 bacteria after 5 hours it grew to 2600
Jobisdone [24]
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<span>Where P₀ is the initial population, </span>
<span>P(t) is the population after "t" time. </span>
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<span>So using the information given, solve for k: </span>

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<span>1.3 = e^(4k) </span>

<span>Natural log of both sides: </span>

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<span>Now that we have a value for "k", use that, the same P₀, then solve for P(17): </span>

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<span>P(17) = 2000 e^(17ln(1.3) / 4) </span>

<span>Using a calculator to get ln(1.3) then to simplify from there, we get: </span>

<span>P(17) ≈ 2000 e^(17 * 0.262364 / 4) </span>
<span>P(17) ≈ 2000 e^(4.460188 / 4) </span>
<span>P(17) ≈ 2000 e^(1.115047) </span>
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<span>Rounded to the nearest unit: </span>

<span>P(17) ≈ 6099 bacteria  hope i could help =)))</span>
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Answer:

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slope : ( -2 - 4 )/( - 3 + 4)

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Step-by-step explanation:

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